Rice Rocket..

..to use plugs on my scooby BKR8EiX is this ok?

I'm running higher boost. 15.5psi

Ricey

JIM THEO

STI sells as uprated plug the BKR7EIX with 0,6mm gap similar with the PFR7B but in iridium!
In my opinion 8's are to much for your needs, 15.5psi isn't "higher boost" if your car is MY01 upwards, even PPP WRX's that work at 17+ psi boost have not problem with the factory spark plugs.
JIM

Pavlo

I run those plugs, they are okay, would go with 7 range plugs for that boost.

Paul

Midlife......

iTrader: (2)

I run PFR7B's at Bob Rawle's advice on my MY02 bugeye running 1.37 bar (just under 19psi)

As DaveW mentioned they might be changed at 10,000 miles

Midlife.....

Rice Rocket..

What would happen if I used the 8s?


Thanks for your help

Ricey

WUZ

iTrader: (14)

Cold starts will be a B**CH! and Idle way be a little lumpy.

Russell

Rice Rocket..

thanks WUZ


Ricey

john banks

My cold starts are fine on racing 8s. There is a little hesitation on light throttle at 2800 RPM, idle is good considering the injector size, bore size and lightened flywheel.

Pavlo

Cold starts on the BKR8EIX iridiums are fine, no different to PFR7bs in my experience. They are not a retracted design like some of the racing plugs, and this definitely helps.

Paul

Rice Rocket..

So the short straw of it is.... do i get themn fitted (8s) or do I buy the 7s??


Ricey

AndrewC

7s.

Midlife......

iTrader: (2)

PRF7's ..... sparkplugs.co.uk or from a well known dealer such as asperformance.com